Bearing-joint of ink-fountains.



Yfrom within with aras riairnnir BURT D. STEVENS, OF EVASTON, ILLINOIS, ASSIGNOR TO MEHLE PRINTING PRESS 6L MANUFACTURING COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION E ILLINOIS.

,i Leanser,

Application led October S, 1915.

To all Lc/tom if may concern:

Bc it known that I.` BURT D. Smvnns, a

citizen of the United States, residing at tight the joints may he, has a tendency to' collect ink: and when the ink trough is cleaned in the act of washing up tor color, even the greatest care will not entirely remore the ink from the hearingr joints and it will later work out into the color causing' streaks and resulting in imperfect work.

The object ot-the present invention is the prevention ot the entrance of the ink into the hearing joints in the rst instance and ihcrelw avoid all danger of this subsequent working out'ot thc ink into an ink of ditlerent color. l

l accomplish this invention hy continuously charging the journal of the ink roll a substance, preferably haring lul'iricatine qualities. such as cup grease. vaseline or the like. lout essentiall)r inert.y neutral as to color and miscihle with ink, which substance will fill the hearing joints and will have an eliluent tendency. whereby it will not onl)Y prevcn't'the en* trance of the ink to the joints hut will keep the inl\P away from the joints.

ln order that the invention may he, readily7 understood by those skilled in the art, I have in the accompanying drawings and in the detailed description hased thereon set fordi a preferred embodiment ot' the invention. As, however, it will he obvious .that the invention may he embodied in other vvaried eonstruetional forms. it will he unlongitudinal vertical section and partially Specification of Letters Fat-ent.

Patented Juiy 3, iliti.

Serial No. 54,9()9.

broken away to ilustratethe application of the inventiong y l Fig. 2 is a vertical transverse section on the line Qe-Q of Fig. 1; and

Fig. 3 is a vertical sectional View througih a modification.

Having particular reference to the illustration, the reference numeral 11 designates the ink plate oi a trough having the end plate 12, iii-which end plate the journal 13 of the ink roll ll has its hearing, the roll. also having an end hearing joint l between its end shoulder portion and the end plate 12 of the trough. Into this hearing joint 15 there is a tendency ot' the ink to enter from the trough and, as previously stated, it is exceedingly ditiieult and vjinactically iinpossible to entirely remove the ink therefrom in washing up for color, with the result that this ink will afterward work out of the joints into the ink inthe fountain and cause streaks in the work. I a'void this diiliculty as follows: i'

The journal 13 oi the ink roller is prov vided with an axial longitudinal here 16 extending from its end inward to the point indicated at 1'2" and thence at an angle indicated at 1S to the hearing: surface of the joint indicated at 19. Screwed into the end of the journal 13 at 2O is a compression feed cup 2.1 provided with a cap having* a plunger portion Q3 adapted to enter the interior of the feed cup 21.

ly means ot' the compression 'feed cup 2l the hores 16 and .18 are charged with a substance preferably having vliibrieating qualities and which is inert as to the ink within the inlriountain, that is to say, ineffective in small quantities to modify the physical or chemical properties of the inlr. It is also neutral as to color and is miscihle with the ink in the fountain. Vshen the cup 22 is screwed upon the feed cup 21 the plunger will serve to force the substance through the hores into the hearing joint and, there will he a. slightly etlluent tendency which will cause anyV ink seeking toenter the joint to be crowded out into 4the troughu Thus the hearingl joint 15 will he kept cntirely free from ink and whenever it de sired to change the ink in the feuntainfrom one color to another, there will be no collection of ink Within the bearing joint Which Will afterward have to be accounted for. The joint is kept entirely free from ink at all times and thus the danger of color streaks in therwork is absolutely avoided.

At 2st is indicated the usual oil cup which supplies oil through the channel 25 to the bearing of the journal 13, an annular channel 26 being employed near the 'Inner end of the journal bearing to collect oil and prevent access of the same to the end 1eea-ring l5, the surplus oil being drained away through the channel Q7. This prevents the disadvantages which would result from the oil entering the end bearing l5 and being thence introduced to the ink within the` trough.

InLFig. 3 is shown a slight modification wherein the ink solvent is introduced to the bearing joint 15 through a port 16 located Within the plate 12 instead of through the journal 13. As in the former case the ink solvent is supplied by means of a compression cup threaded into the plate at 20, the solvent being conducted through the port 1G to the bea ring joint l5 throughout which it is dispersed by a general spiral movement and ultimately finds its way gradually from the bearing joint into the ink trough.

l cla-im:

l. In an ink fountain` the combination of the ink trough, and an inl; roller having its end bearing joint exposed to the interior of the trough, the roller having a bore eX- tending to the bearing surface of the joint, and means to. supply to such bearing with effluent tendency a substance which is inert relative to the ink in the trough.

In an ink fountain.A the combination of the ink trough, and an ink roller having its end bearing joint exposed to the interior of the trough, the journal of the roller haring a longltudlnal bore extending to the bearing surface of the joint, and means yto supply through. said bore to said bearing to the bearing surface of the joint, andf means to supply through said here to said bearing an inert substance misoible in the ink. l

'-t. In an ink fountain, the combination of the ink trough, and an ink roller'having its end bearing joint exposed te the interior of the trough, the journalv of the roller having anA axial bore extending outwardly to the bearing surface of the joint, and means to supply through said -bore to said hearing an inert lubricating substance miscible in the ink.

5. Inan ink fountain, the4 Combination of the ink trough, and an ink roller having its end bearing joint exposed to the interior of the trough, a bore extending outwardij' from the bearing surface of the joint, and a compression feed run connected to the entrance of the bore, whereby to 'supply through said bore to said bearing with eiliuent tendency an inert lubricating substance miscible in the ink.

(3. In an ink fountain, the combination `of the ink trough` and an ink roller having its end hearing joint exposed to the interior of the trough, the journal of the roller hav ing an axial here extending outwardly from the bearing surface of the joint, and a conipresson feed cup connected to the entrance of the bore-r whereby to supply through said bore to said bearing an inert ylubricating substance miseible in the ink. v

- BURT D. STEVENS. lVitnesses;

` GEO. H; Pneu,

B. F. Drown.` 

